Unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code via crafted font data in a Word document or web page, as exploited in the wild in November 2011 by Duqu, aka "TrueType Font Parsing Vulnerability."
Published Nov 4, 2011 ·Due Oct 27, 2025
8.8
HIGHCVSS 3.1
EPSS 78.14%
Description
Unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code via crafted font data in a Word document or web page, as exploited in the wild in November 2011 by Duqu, aka "TrueType Font Parsing Vulnerability."
Affected products
No data.
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
Date Added
Oct 6, 2025
Patch Due
Oct 27, 2025
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Oct 4, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 78.14% (0.78138) | 99.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 78.36% (0.78365) | 99.52th | v5 (v2026.06.15) |
| Apr 22, 2026 | 88.31% (0.88311) | 99.50th | v4 (v2025.03.14) |
| Mar 4, 2026 | 90.28% (0.90284) | 99.59th | v4 (v2025.03.14) |
| Oct 28, 2025 | 88.67% (0.88671) | 99.48th | v4 (v2025.03.14) |
| Oct 7, 2025 | 89.75% (0.89746) | 99.54th | v4 (v2025.03.14) |
| Jul 21, 2025 | 92.30% (0.92304) | 99.71th | v4 (v2025.03.14) |
| Apr 15, 2025 | 90.20% (0.90204) | 99.54th | v4 (v2025.03.14) |
| Mar 17, 2025 | 92.67% (0.92666) | 99.75th | v4 (v2025.03.14) |
| Jan 4, 2025 | 94.78% (0.94782) | 99.45th | v3 (v2023.03.01) |
| Dec 12, 2024 | 96.24% (0.96242) | 99.60th | v3 (v2023.03.01) |
| Jun 24, 2024 | 96.75% (0.96754) | 99.68th | v3 (v2023.03.01) |
| Nov 23, 2023 | 96.92% (0.96921) | 99.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.91% (0.96909) | 99.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 89.30% (0.89298) | 99.82th | v2 (v2022.01.01) |
| Dec 25, 2022 | 89.30% (0.89298) | 99.81th | v2 (v2022.01.01) |
| Oct 7, 2022 | 85.26% (0.85262) | 99.65th | v2 (v2022.01.01) |
| Feb 4, 2022 | 85.98% (0.85977) | 99.63th | v2 (v2022.01.01) |
No CWE recorded.
References (21)
- http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files x_refsource_MISCBroken Link
- http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx x_refsource_CONFIRMVendor Advisory
- http://isc.sans.edu/diary/Duqu+Mitigation/11950 x_refsource_MISCThird Party Advisory
- http://secunia.com/advisories/49121 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/49122 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://technet.microsoft.com/security/advisory/2639658 x_refsource_CONFIRMVendor Advisory
- http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two x_refsource_MISCNot Applicable
- http://www.securitytracker.com/id?1027039 vdb-entryx_refsource_SECTRACKBroken Link
- http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit x_refsource_MISCNot Applicable
- http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf x_refsource_MISCNot Applicable
- http://www.us-cert.gov/cas/techalerts/TA11-347A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.us-cert.gov/cas/techalerts/TA12-129A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.us-cert.gov/cas/techalerts/TA12-164A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-291-01E.pdf x_refsource_MISCUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087 vendor-advisoryx_refsource_MSVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-034 vendor-advisoryx_refsource_MSVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039 vendor-advisoryx_refsource_MSVendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998 vdb-entrysignaturex_refsource_OVALBroken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290 vdb-entrysignaturex_refsource_OVALBroken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645 vdb-entrysignaturex_refsource_OVALBroken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-3402 government-resourceUS Government Resource
Change history (0)
No recorded changes yet.